ijolite

English

Etymology

Derived from the first syllable of the Finnish words Ii-vaara, Iijoki, etc., common as geographical names in Finland (ultimately reflecting Proto-Samic *ijë (“night”)), and Ancient Greek λίθος (líthos, “a stone”).

Noun

ijolite (countable and uncountable, plural ijolites)

  1. A rare igneous rock consisting essentially of nepheline and augite.

Further reading

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